Re: Detecting corrupted pages earlier

From: Curt Sampson <cjs(at)cynic(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: Detecting corrupted pages earlier
Date: 2003-02-18 03:07:52
Message-ID: Pine.NEB.4.51.0302181207160.452@angelic-vtfw.cvpn.cynic.net
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On Mon, 17 Feb 2003, Tom Lane wrote:

> Postgres has a bad habit of becoming very confused if the page header of
> a page on disk has become corrupted.

What typically causes this corruption?

If it's any kind of a serious problem, maybe it would be worth keeping
a CRC of the header at the end of the page somewhere.

cjs
--
Curt Sampson <cjs(at)cynic(dot)net> +81 90 7737 2974 http://www.netbsd.org
Don't you know, in this new Dark Age, we're all light. --XTC

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